AR27.19-P-1718GL | Remove/install automatic transmission control unit | 15.2.12 |
TRANSMISSION 722.637 in MODEL 461.302 /331 /332 /342 /345
P54.21-2302-12
1 Cover
2 Selector lever handle
P54.21-2300-11
N15/3 ETC control unit
| Remove/Install | ||
Danger! | Risk of explosion caused by escaping oxyhydrogen gas. Risk of injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries caused by short circuit. Risk of poisoning caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices | No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards. Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground. Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers. | |
1 | Disconnect ground lead from battery | The vehicle has a 12 Volt and a 24 Volt on-board electrical system. For safety reasons, both ground lines must be disconnected. | |
| Notes on battery | All models | |
2 | Remove selector lever handle (2) | ||
3 | Remove cover (1) | ||
4 | Remove relay holder | Relay holder is secured at top only. | |
5 | Remove transmission control unit (N15/3) | ||
6 | Install in the reverse order | ||
7 | Read out fault memory and erase | STAR DIAGNOSIS Stored faults which may result from wires being disconnected or from simulation during assembly or testing have to be processed and erased in the fault memories after completing the work. | |
| Connect STAR DIAGNOSIS and read out fault memory |
Commercially available tools